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SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
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SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Water-Lens Magnifiers: a Water-Filled Lamp Bulb and a Drop in a Wire Loop (Boy Mechanic, 1913)
Two lenses made of water: a dead incandescent bulb with its tip removed, filled with clear water and corked, makes a large reading magnifier; a single drop of water held in a tiny wire loop makes a strong pocket microscope for plants.
Mwanzo
Half an hour
Maagizo
1
1
Read the Boy Mechanic
Read the Boy Mechanic
"A very good magnifying glass can be made from an ordinary incandescent lamp ... which has been rendered useless."
2
2
Bulb lens: open the bulb
Bulb lens: open the bulb
Take a burned-out clear incandescent lamp (about 16 candlepower). Wearing gloves and eye protection, grind or break off the tip end of the glass globe.
Vifaa kwa hatua hii:
Balbu ya taa1 kipandeZana zinazohitajika:
Kikata kioo
Tupa (Tupa ya Mkono)
Glavu za mpira3
3
Bulb lens: fill and seal
Bulb lens: fill and seal
Fill it with clear water and plug or cork the hole. Look through the round of the bulb.
Vifaa kwa hatua hii:
Maji yaliyosafishwa kwa mvuke1 kipande
Vizibo vya mzibo1 kipande4
4
Loop lens
Loop lens
For a stronger glass, bend a fine wire (or a leaf stem) into a loop no bigger than an ordinary drop of water and set a drop of clear water in it. Hold it close to your eye and to the object.
Vifaa kwa hatua hii:
Waya wa chuma uliovutwa kwa bamba1 kipandeMaji yaliyosafishwa kwa mvuke1 kipandeZana zinazohitajika:
Koleo la Mdomo Bapa5
5
Troubleshooting
Troubleshooting
Water lens troubleshooting.
Flow
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6
6
History and honest limits
History and honest limits
From **The Boy Mechanic, Book 1** (Popular Mechanics, 1913), pp. 397 and 305 (checked on the archive.org scan boymechanic0000unse_n5a8). Gloves, eye protection and the lamp-type warning are ours.
Vifaa
4- 1 kipandeKishikilia Nafasi
- 2 vipandeKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
- 1 kipandeKishikilia Nafasi
Zana Zinazohitajika
4- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
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